Why does dull black emit and absorb more than shiny silver?
بے چمک سیاہ سطح چمکیلی چاندی سے زیادہ اشعاع کیوں جذب و خارج کرتی ہے؟
Solution & explanation
At comparable temperature and relevant wavelengths it has higher emissivity and absorptivity. Shiny silver reflects much of the incident infrared.
Independent study answer. Original textbook ↗ · English-medium printed page 31.